/Engine/Plugins/2D/Paper2D/Source/Paper2D/Classes/PaperSprite.h
static void FindContours ( const FIntPoint & ScanPos, const FIntPoint & ScanSize, float AlphaThreshold, float Detail, [UTexture2D](API\Runtime\Engine\Engine\UTexture2D) * Texture, [TArray](API\Runtime\Core\Containers\TArray)< [TArray](API\Runtime\Core\Containers\TArray)< FIntPoint > > & OutPoints )